96 lines
3.2 KiB
TypeScript
96 lines
3.2 KiB
TypeScript
/// <reference path="../broccoli.d.ts" />
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/// <reference path="../broccoli-writer.d.ts" />
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/// <reference path="../../typings/fs-extra/fs-extra.d.ts" />
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/// <reference path="../../typings/node/node.d.ts" />
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import fs = require('fs');
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import fse = require('fs-extra');
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import path = require('path');
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import TreeDiffer = require('../tree-differ');
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import Writer = require('broccoli-writer');
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let traceur = require('../../../../tools/transpiler');
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let symlinkOrCopy = require('symlink-or-copy');
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let xtend = require('xtend');
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export = traceurCompiler;
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function traceurCompiler(inputTree, destExtension, destSourceMapExtension, options) {
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return new TraceurCompiler(inputTree, destExtension, destSourceMapExtension, options);
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}
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traceurCompiler['RUNTIME_PATH'] = traceur.RUNTIME_PATH;
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class TraceurCompiler implements BroccoliTree {
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treeDiffer: TreeDiffer;
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initialized = false;
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// props monkey-patched by broccoli builder:
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inputPath = null;
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cachePath = null;
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outputPath = null;
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constructor(public inputTree: BroccoliTree, private destExtension: string,
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private destSourceMapExtension: string, private options: {[key: string]: any}) {}
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rebuild() {
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let firstRun = !this.initialized;
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this.init();
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let diffResult = this.treeDiffer.diffTree();
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diffResult.log(!firstRun);
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diffResult.changedPaths.forEach((changedFilePath) => {
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var extension = path.extname(changedFilePath).toLowerCase();
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if (extension === '.js' || extension === '.es6' || extension === '.cjs') {
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var options = xtend({filename: changedFilePath}, this.options);
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var fsOpts = {encoding: 'utf-8'};
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var absoluteInputFilePath = path.join(this.inputPath, changedFilePath);
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var sourcecode = fs.readFileSync(absoluteInputFilePath, fsOpts);
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var result = traceur.compile(options, changedFilePath, sourcecode);
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// TODO: we should fix the sourceMappingURL written by Traceur instead of overriding
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// (but we might switch to typescript first)
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var mapFilepath = changedFilePath.replace(/\.\w+$/, '') + this.destSourceMapExtension;
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result.js = result.js + '\n//# sourceMappingURL=./' + path.basename(mapFilepath);
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var destFilepath = changedFilePath.replace(/\.\w+$/, this.destExtension);
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var destFile = path.join(this.cachePath, destFilepath);
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fse.mkdirsSync(path.dirname(destFile));
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fs.writeFileSync(destFile, result.js, fsOpts);
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var destMap = path.join(this.cachePath, mapFilepath);
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result.sourceMap.file = destFilepath;
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fs.writeFileSync(destMap, JSON.stringify(result.sourceMap), fsOpts);
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}
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});
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diffResult.removedPaths.forEach((removedFilePath) => {
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var destFilepath = removedFilePath.replace(/\.\w+$/, this.destExtension);
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var absoluteOuputFilePath = path.join(this.cachePath, destFilepath);
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fs.unlinkSync(absoluteOuputFilePath);
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});
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// just symlink the cache and output tree
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fs.rmdirSync(this.outputPath);
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symlinkOrCopy.sync(this.cachePath, this.outputPath);
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}
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private init() {
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if (!this.initialized) {
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this.initialized = true;
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this.treeDiffer = new TreeDiffer(this.inputPath);
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}
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}
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cleanup() {}
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}
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